Improvement in machines for reducing or pointing wire



A. G. HOTCHKISS. Pointing Wire.

No. 113,885. Patented April 18, 1871.

@anni didnt ALBERT G. HCTCHKISS, OF WCLCOTTVILLE, CONNECTICUT.

Letters Patent No. 113,885, dated April 18, 1871.

IMPROVEMENT IN MACHINES FOR REDUCING OR POINTING WIRE.

The Schedule referred to Ln these Letters Patent and making part of the lame.

To all 'whom it may concern.-

Be it known that I, ALBERT G. HOTCHKrss, of Wolcottville, in the county of Litchfield and State of Connecticut, have invented a new-and useful Im provement in Machines for Reducing and Pointing` Wire for Needles or Pins; and I do hereby declare that the followingiis a full, clear, and exact description thereof, reference being had to the accompany ing drawing forminga part of this specification.

This invention consists in a novel construction of the feed-motion of a machine for reducing and pointing wire, by means of which the wire to be operated upon is rotated and fed between the dies throughout the intended length of the needle or pin, andthe stock or shaft which holds or carries it automatically tripped from. its operating-gear, and, by a spring, shotback, so as to removethe wire from the dies.

In the accompanying drawing- Figure 1 is a plan or top View of a machine constructed according to my invention;

Figure 2 is a partially-sectional side view thereof and Figure 3 is a transverse section of the same.

Similar letters of reference indicate corresponding parts in the several figures.

To enable others' skilled in the art to make and use my invention, I will proceed to describe its construction and operation with reference to the drawing.

Theframe A of the machine, bed-plate B, and dies C C' are of ordinary construction.

The movable die C is operated by an eccentric, O', on the shaft O.

' Secured to the front of the bed-plate B is a frame, D, projecting upwardly froinw'hich are bearings a a', in which the shaft E is capable both of rotating and of moving longitudinally; and on the same frame are other bearings or guides, b b, in whichfslides a rod, G, which is connected with the rear end of the said shaft E by an arm, g, in such manner that the shaft and rod move longitudinally together.

On this frame D, between the bearingsa (t, is a hollow standard, H; and surrounding the lower portion of this standard is a loose sleeve, J, to which is atcached a lever, e, that projects over the rod G.

In the upper portion of the standard H is a hole, through which the shaft E passes; and below this hole there is within the said standard asegmental nut, I, which is thrown in or out of gear with a screwthread, lm, on the shaft by the operation of a pin or projection, o2, formed on the nut (see he. 2) within a vertical slot, n, in the standard, and an oblique one,

lr, in the sleeve, so that, when the sleeve is turned, the said nut is raised or lowered.

|Ihe shaft E extends forward beyond the frame D, its forward end forming the stock or chuck in which the wire is received and carried.

M is a pulley., on the rear side of which is a collar, j, which lits within the bearingl a.

This collar forms theinner bearing of the shaft E. A

From the front of this pulley there project two pins, p p, which engage with a pin,` c,inserted through the shaft E, said pins p p and cforming a clutch, by which the pulley is coupled to the shaft.

On the rod G, between the bearings b b, is a tappet or dog, N, which, in the forward movement of the chuck, acts against the lever e, and turns the sleeve, so as to disengage the nntI from the shaft E.

Surrounding that portion of the rod G between the outer bearing b and the arm g is a spiral spring, S, which, when the shaft E is not engaged by the nut, presses back the rod and with it the shaft, so that the wire is withdrawn from between the dies.

Power is transmitted to the pulley M by belt from a pulley, P, on a shaft, L, to which power is communicated from the driving-shaft O.

The operation is as follows:

The shafts are rst moved forward by hand till the pin c engages with the pins p j) on the pulley M, and the clutch is connected. The sleeve is then turned by hand, by means of the level' e attached to it, to

throw the nut I into gearw with the screw-thread 'nt on the shaft E, which is -now rotated by the pulley M, turning the wire between the dies during their operation on it, and, at the same time, feeding it-forward till the dog N on the shaft G comes in contact with the lever e, and turns the sleeve J, thereby disengaging the nut I from the shaft E, which is then shot back by the spring S on the shaft G, withdrawing the wire from between the dies, and leaving the machine in condition to commence a repetition of the operation when the piece of wire has been removed and a. new )ieee inserted.

hat I claim as my invent-ion, and desire to secure by Letters Patent,

The combination, with the dies C C', of the rotating and longitudinally-rnoving shaft E, clutch p p c, engaging and` disengaging gear I J c N, and spring S, the whole arranged and operating substantially as and for the purpose herein set forth.

ALBERT G. HOTCHKISS.

Witnesses:

Grosor: H. WELCH, G. W. SoovILLn. 

